A road in Canada with speed limit 80 km/h; speed in mph rounded to nearest whole mph.

A road in Canada with speed limit 80 km/h; speed in mph rounded to nearest whole mph.

• A. 54 mph
• B. 50 mph
• C. 62 mph
• D. 48 mph

Answer: (B)

Converting speed from kilometers per hour to miles per hour and then rounding to the nearest whole number. 80 km/h multiplied by the conversion 1 km/h ≈ 0.621371 mph gives about 49.71 mph, which rounds to 50 mph. So the closest whole-number mph equivalent is 50 mph. The other values would come from different conversions around 87 km/h (54 mph), 100 km/h (62 mph), and 77 km/h (48 mph), which don’t match the 80 km/h speed when rounded to the nearest mph.

Converting speed from kilometers per hour to miles per hour and then rounding to the nearest whole number. 80 km/h multiplied by the conversion 1 km/h ≈ 0.621371 mph gives about 49.71 mph, which rounds to 50 mph. So the closest whole-number mph equivalent is 50 mph. The other values would come from different conversions around 87 km/h (54 mph), 100 km/h (62 mph), and 77 km/h (48 mph), which don’t match the 80 km/h speed when rounded to the nearest mph.